Louis maiche



(No Model.)

L. MAIOHE.

PROCESS OF SEPARATING HEAVY FROM LIGHT PARTICLES BY GENTRIFUGAL ACTION.

No. 593,900. Patented Nov. 16, 1897.

EELESSBS livenibr UNITED STATES PATENT FFICE.

LOUIS MAIOHE, OF PARIS, FRANCE.

PROCESS OF SEPARATING HEAVY FROM LIGHT PARTICLES BY CENTRIFUGAL ACTION.

SPECIFICATION formingpart of Letters Patent No 593,900, dated November 16, 1897.

Application filed April 26,1897. Serial No. 634,004. (No specimens.)

To all whom it may concern:

Be it known that I, LOUIS MAICHE, a citizen of France, residing at 368 Rue St. Honor, Paris, France, have invented a certain new and useful Improved Process of Separating Heavy from Light Particles by Centrifugal Action, of which the following is a specification.

When material, such as pulverized mineral containing heavy particles of metal or other bodies, is mixed with water and treated in a centrifugal drum, the whole of the solid material becomes accumulated at the circumference, leaving the water in the middle, and during the centrifugal action the outward movement of the solid particles is so rapid that the heavier particles have not time to become separated from the, lighter. I Now according'to this invention the vpulverized mineral is mixed not with water butwith viscous liquid-such as starch paste, syrupy or mucilaginous extracts from vegetables, or seaweeds or silicates.

The accompanying drawing shows a sectional elevation of a centrifugal drum suitable for carrying my invention into effect.

The drum A is preferably constructed with an inwardly-projecting lip B, and on charg- S ing this drum with the pulverized mineral mixed with the viscous liquid and causing it to revolve the particles move towardthe circumference, but are so retarded by the viscidity of the mixture that time is given for the heavier particles, in virtue of their greater centrifugal tendency, to become separated from the lighter particles and to collect in' an outer layer at the circumference of the drum, whence they can be removed after removing the lighter portions.

Having thus described the nature of this invention and the best means I know of carrying the same into practical effect, I claim The herein-described process for separating the heavy from the light particles of pulverized material by mixing the material with Viscous liquid and subjecting the mixture to centrifugal action. I

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 8th day of April, A. D. 1897.

LOUIS MAIQHE. 

